Atomizer



gam. 6, 3953 Filed Jun@ 228, lEvl IE'E NVENTOR BIJNA-,L17 J P55125 BY 0.L0 @ww ATTORNEY Patented Jan. 6, 1953 ATODHZER Donald J. Peeps, Toledo,Ohio, assignor to The De Vilbiss Company, Toledo, Ohio, a corpora-- tionof Ohio Application June 2s, 1951', serial No. 234,043

This invention relates to an atomizer for spraying perfume and to suchan atomizer of a compact size for carrying in a pocket or purse andhaving means for maintaining the atomizer sealed against leakage whennot in use.

A principal object of the invention is the provision of an atomizer ofthe type described which may be economically produced and is designed tostand long use without failure.

These and other objects and advantages of the invention may be perceivedby referring to the following description and the accompanying drawings.

In the drawings:

Figure l is an elevational View of an atomizer embodying the invention;

Figure 2 is a vertical section with the atomizer turned 90 to the leftof its position in Figure 1;

Figure 3 is a horizontal section of one part of the casing taken on theline 3-3 of Figure 2;

Figure 4 is a horizontal section taken on the line d-d of Figure 2;

Figure 5 is an enlarged front view of the piston member of the atomizer;and

Figure 6 is an enlarged vertical section of the lower portion of theatomizer taken on the line B-I of Figure 1.

Referring in more detail to the drawings the atomizer has a maincylindrical casing I into which is telescopingly xed an upper casingextension 2. The two parts are rmly joined by a press t. To permiteasier starting of the telescoping press fit the lower end of theextension 2 has a limited longitudinal slot 2 I.

A compact piston 3 is lodged within the casing I. By locking disc nut 4a downwardly facing cup leather 5 is held to the bottom of the piston 3.An expanding washer 6 between the nut 4 and cup leather 5 retains thelatter in contact with the casing wall. A spring 'I rests on the innerbottom of the casing and is thrust against the lower end of the piston.

The stud 8 extending downwardly from the lower end of the piston is ananchoring post for the locking nut 4, a stopping element for downwardmovement of the piston, and provides an outlet for the air compressedbeneath the piston by way of the vertical bore 9 therethrough. This borecommunicates with a laterally directed yair discharge nozzle I Il.

The piston 3 has an upper cylindrical extension II. This extension is ofreduced diameter and is axially offset in respect to the lower portionof the piston 3.

In the upper end of extension II is a threaded 4 Claims. (Cl. 299-88)socket I2 adapted to receive the threaded neck' of an inverted perfumevial I3. The vial is of sufficient length to project out of the casingextension 2 to provide a linger contacting portion for actuation of thepiston. Within the socket l2 is a gasket I4 for sealing reception of thevial.

A liquid passage I5 descends at an angle from the socket I2 into thepiston body to a point below the air nozzle I0. The passage I5 thenturns upwardly for delivering liquid to the liquid discharge tip I6, theoutlet of which is forwardly in line-V with the outlet of air nozzle I0.The nozzle and.. tip terminate within the lower end of a vertical'.groove I'I which extends the length of the most; offset side of theApiston extension and slightly' into the main piston body.

For proper atomizing cooperation between the air nozzle Ill and theliquid tip I6 they are positioned in outwardly converging relation withthe air nozzle above the liquid tip in the same radial plane from thepiston axis. In order for the air passage bore 9 and the liquid passageI5 to communicate respectively with the air nozzle IIJ and the liquidtip I6 both the bore and the passage are oppositely off-center and thelatter is angled to pass beneath the air nozzle.

The lower edge I8 of the casing extension 2 by opposing the shoulder I9formed at the juncture of the two differing diameters of the pistonconstitutes a stop for the spring propelled upward movement of thepiston.

A small section 20 of the lower edge I8 of the casing extension isflanged inwardly into the groove Il forming a downwardly facing pocket22. The piston extension 2 of reduced diameter is offset in order thatthe guiding groove I'I therein is closely adjacent to the casing forreceiving the flanged edge section 20. The latter serving as a key inthe groove I'I prevents relative turning of the piston 3 and the casing'I.

In the pocket 22 is a liquid tip sealing plug 23. The plug 23 is keptvertically in line with the tip by the key action of the pocket ilange20 extending into the groove I1. A vertically elongated aperture 24 inthe casing provides an opening for the discharge of atomized perfumeformed by the low of air across the outlet of the liquid tip I6.

The abutment of the piston shoulder I9 against the lower edge I8 of thecasing extension 2 is gauged to permit sealing contact of the liquid tipI6 with the sealing plug 23 while preventing too flcful inpingement ofthe tip against the plug which would deform the latter and destroy itssealing effect.

In using this atomzer the vial I3 is first de-` tached for lling. Withthe atomizer in inverted position the lled vial is threaded tightly backinto place against the gasket I4. Then holding the atomizer endwisebetween the thumb and forenger the projecting end of the vial isrepeatedly pressed inwardly against the return pressure of the spring 1.The downward movement of the piston draws the liquid tip I6 away fromthe sealing plug 23 and places the air nozzle and liquid tip in linewith the aperture 24 for spraying therethrough.

The air compressed beneath the piston travels upwardly through bore 9and out air nozzle I0. The resulting air jet passing over the outlet ofliquid tip I6 creates a suction effect thereon and draws perfume fromthe vial and out of the tip. This perfume is atomized by the action ofthe air and is discharged forwardly through aperture 24.

On discontinuance of the atomizing action the piston is returned by thespring 'I to its upper stopped position against edge I8 of the casingextension `2 with the liquid tip I6 slightly embedded in the sealingplug.

It may be observed from the preceding that the design of atomizer setforth is compact, inexpensive to manufacture, has a minimum number ofparts and a simple but effective sealing means.

The features believed to be novel and which contribute to the improvedresults include the holder for the sealing plug which also serves as akey for guiding the piston vertically; the form of piston which providesthe stop shoulder preventing the liquid tip from penetrating the I tionwhich may be embodied in various forms other than that specicallydisclosed herein.

Having -thus described my invention, `what I claim as new, yand desireto secure by United States VLetters .Patent is:

l. In an atomizer of the type described, a casing with a side openingfor spray discharge, a piston in the casing, a longitudinal groove inthe side of the piston, a liquid outlet nozzle projecting from thepiston upwardly into the groove and longitudinally in register with theside opening in the casing, a flange extending into the groove from thewall of the casing preventing relative turning of the piston and casing,nozzle sealing material supported by said flange, and a spring beneaththe piston thrusting the piston upwardly, thereby yieldingly holding theliquid nozzle against the sealing material.

2. In an atomizer of the type described an open topped casing, a pistonof cylindrical form within the casing above an air compression chamber,an inverted liquid container attached to the upper end of the piston,said piston having a longitudinal groove along one side, spray nozzlemeans carried by the piston and projecting into 'the groove toward anopening in the side of the casing, said piston having air and liquidpassages respectively from its lower and upper ends to said nozzlemeans, and a projection extending from the casing wall inwardly into thegroove to maintain the piston and casing in vertical alignment.

3. An atomizer as set forth in claim 2 in which a sealing element issecured to the underside of the projection, and there is a springbeneath the piston impelling it upwardly and bringing the nozzle meanscarried thereby into contact with the sealing element.

4. An atomizer as set forth in claim 2 in which the upper end of thepiston is of reduced cylindrical form and is axially offset in respectto the lower piston portion, and the longitudinal groove extends alongthat side of the upper end of the piston nearest the side wall vof thecasing.

DONALD J. PEEPS.

REFERENCES CITED The following references are of record in the le ofthis patent:

Number Name Date 2,079,587 Aronson May 1l, 1937 2,203,576 Mikosz June 4,1940 2,462,563 Seyforth Feb. 22, 1949 2,528,641 Cotter Nov. 7, 1950

